kubeadm: Ensure etcd manifests are regenerated upon upgrade
kubeadm: Ensure etcd manifests are regenerated upon upgrade

A check that verifies that kubeadm does not "upgrade" to an older release was
overly optimized by skipping upgrade if the new version is the same as the old
one. This somewhat makes sense, but that way changes in any of the etcd fields
in the ClusterConfiguration won't be applied if the etcd version is not
changed.

Hence, this simple change ensures that the upgrade is done even when no version
change takes place.

Signed-off-by: Rostislav M. Georgiev <69ae653c85db018d136c9627c3957a3eb122cdbe@vmware.com>

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